ZkProgram doc updates for new non-experimental

[barriebyron]

We missed corresponding doc updates for o1-labs/o1js#1200
@garwalsh can you provide product guidance on how we present the ZkProgram API.
It will be helpful to have a doc we can link to. The only doc that mentions it is https://docs.minaprotocol.com/zkapps/o1js/recursion with an experimental flag.

Questions:
how to use which flavor?
benefits and differences?

[garwalsh]

@mitschabaude
In o1-labs/o1js#1200 it states:

• name is required in the new non-experimental API, but still optional in the old Experimental.ZkProgram

When you say "the old Experimental.ZkProgram" does that refer to a developer who has not updated to today's release?
I ask because I don't think we need to keep docs that align with deprecated versions of o1js.

If that's the case, then outstanding docs work should be:

• https://docs.minaprotocol.com/zkapps/o1js/recursion
  -- Remove experimental callout
  -- Remove experiemntal in code snippets
  -- Add name argument in code snippets

• https://docs.minaprotocol.com/zkapps/tutorials/recursion
  -- Remove experimental in code snippets
  -- Add name argument in code snippets

[mitschabaude]

Yes agree with that assessment @garwalsh